{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xa3cb78e29650c87374d96d91f4c80a05c08689c61e4a09dff4e3909dc7434203",
    "signature": "0x52efd782bb387524203c11aacafbaa824b5108fb670b7c4011133994006ab8694e86bfc7de4b5db2e096b646c7997f37d65fff20410ded5bff02258ad0362ffb1b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}