{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe453a69031c2db299a627d9dfed29541676779552d73e3ddf3ad450b7c12d5bc",
    "signature": "0x9a7387cc40e7fa7f90c285cd84f79531da4c78d70ff15e056af44b1d99ed722c1f0c494cf85ca19cd0415157ba8ae8a9f9623aabe20b5901e7973ca0459b06df1b",
    "signer": "0xd13DaA6FD8aC5f5020F6Fc5e9f048B4Eb1bC979a",
    "userId": "297845735"
  }
}