{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0x97c8ae5ace3ee7a1e796ffcbe2bd1a799adff0b1d5c4618b7c9ad123d0f847e3",
    "signature": "0xead62452ca7aa0eb5a4c6d95f1d4a664a6845264e628143578a61bfc2b45718127733f91dc54bd2ba1062dbfc001b58b341427940e1855087fdfc7821438c1bb1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}