{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77604",
    "entityType": "User",
    "nonce": "0x9157d53a84cc58a5bc15a8fd425e278227b1d5e71a0fdbdb5cbeb91f4860d632",
    "signature": "0x5dfef41510dca0048ed7cd31711a0f9238371424a819386a1d824b58b4a39a45364f3536463e368de3bc78cdde01f0cefe28c909d22f55ff6abae8633863563e1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}