{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2195",
    "entityType": "User",
    "nonce": "0x7668055ea5f5bf3f0295c76ec95f5e3e3aed807c5e0e7370c0de937962589555",
    "signature": "0x6ce9bbed22abd3a2dee968ed39089957c16d219acfbfbc5dc4ad5455b9f447811483c3948ff784cda2bf87d764aebebfeafe26c50cff523113fad85cfd3445631c",
    "signer": "0x1BF18676e3272039E0bF8f2a021954D13cC10a6F",
    "userId": "839909525"
  }
}