{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae80eeb10bcfdb06fa8738780c7d3951f1f64cd92780f7fe094f1cdc4f731b0e",
    "signature": "0x64eee51c9b05e33a5ec6f8af36b1d0b72ead84f319544f69c33c35b8faa6f5c25004c6995b5dc8dffb8d45cf123d7a8db2143ed146698aa9413c8e32960802b01b",
    "signer": "0x2b2f031966c81c606784c11148DAE1fBac1a4829",
    "userId": "933689898"
  }
}