{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311341",
    "entityType": "User",
    "nonce": "0x56059f733f7108ec72135b7ece207cf70a2fbbec0003c16afcd90d9aaccc9e5f",
    "signature": "0x51fce54262a8a2cf4e5a437fd54c8c45dc63d742c3ee67da1f83c0c85c5d9a3f2c7d6efcfc5b8a5b912ca0e82b1df467c2e6cf4197ac97bf18da755e48f79c2b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}