{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0f842eb154e12a2451900e50a4b0aaf790118bbb0162cf730fa50356cad215d",
    "signature": "0xd90859384b42c98a419f5a951a3b8d53ecb896b1a8761951caf822e4965143bc629683ce641bd89af533345b5e11cccd7ae86fcbb00524ccdfaa51c2aacf36721b",
    "signer": "0x0746ac63Fa7A7D0c953CC81Af73B6a193363946B",
    "userId": "907622463"
  }
}