{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17800",
    "entityType": "User",
    "nonce": "0x95e138cad96e6d03a1096b2e89850115a018138ee2a8a77aed723de43f4cb0c5",
    "signature": "0xc9898932e58b7c4e9d764936371ae9df29306edafc64f8ef4507ec01aeea7e137d55d8ed25655bfdb60ea122c2ba217e4898fa18071adee717adaae2f14df6e31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}