{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422886157",
    "entityType": "User",
    "nonce": "0xc4901168823b23111b73596a0a59abb49ec1684dad33dc9cca0a92d408f3ff57",
    "signature": "0xe75d453da1fe38b655b90b6690c0c383e2fcdb96fe6bd460fec77958a17a64486bdea81403c8963326fc8a0f6d528081aff7abe3f0ede9d8c65b0fc628add25f1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}