{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "650995561",
    "entityType": "User",
    "nonce": "0xcef7252da0ddd1faa12638dc68f555fb415e82aed6adcd595cf3e04d4a2ac09e",
    "signature": "0x76e4ad924f79bb32a4f2ecfb1096bf159ea944b43c32c9edf0261cdd235a90956b56b7304afccff631be5e94cd7e98c84f3ad2dd6b7336ebfb8d0e79cd7cc6921b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}