{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100856",
    "entityType": "User",
    "nonce": "0xc0e525a68de65d085ba9f606710f08667aefe10bd4eea63afb333be64f2e00be",
    "signature": "0xc9387bf10a0112a8bed0b49b9aa30bde809415dc1b97b5ac52c1c267a7a1310f491d2a1576bb247637e92a51a9328b0b24ee029139032dcf4570168c5e87017a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}