{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xc3097fbca7b51e4d17832a432e948808401721838c04762be8e3b570b7f317b1",
    "signature": "0xd638196a830573db7b751b561f854afa20fe298fc81e5287d8acb19049f1efdd5ad0e90520f8978f470b20c2ecacce9fb3f74f322748aae5dbe1c60ff75ae52d1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}