{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xf7678458f7ade7a9b387761c3969caa370ed472e2fb71d653c776faa198057be",
    "signature": "0x5dd63f86955f1d9b877ee5d78c6126548f0f00e70662a7d798ab52e2f9be910672d2269a49d116355200b8dd5e61028d8820feee711b297faf40e4425a91ea301b",
    "signer": "0xd13DaA6FD8aC5f5020F6Fc5e9f048B4Eb1bC979a",
    "userId": "297845735"
  }
}