{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71121",
    "entityType": "User",
    "nonce": "0x28035e8a631292b7860323b56e9842cb907cebf0370367942b0805688ab73262",
    "signature": "0x7e555bb64843a66cbe1ca805e614e0ca49725a15ac5d5afa0fd7a20c3408e4200bf43ff445e75f4da6c83bbabb642b396d763ebc3267828f5979551afa6a95821c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}