{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5f986db8ac0448471383705530f2d378e7ee2a05d81af43553b900ea3d89378",
    "signature": "0x402292250f34690812c4ebfa3f69dea9829c7fe6f4689ba5e0e1de934143ca755b9267c27b86010f9beb00b81567e51cf920c6cb963707c9e7dcb1aacd3aec631c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}