{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x3117491c9c910e988dc4fed46547bb580e055d71d055935e9cd02fa6c77dc46b",
    "signature": "0x41ba174db26ad85fd69b0c4908c6066439b78a120150e41f2e3c543d36aee29b3197dad32378edbff6742492e9d9dc607cd21e57f66e7653a7049c709ce91c821c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}