{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41440",
    "entityType": "User",
    "nonce": "0x4381ac057c167d68db31fff56fb4706030688bf30bd65e0f4afb0685928a21cb",
    "signature": "0x9abc0eeb8bfd5111222654f139ed0199d1590b9167ac45cebd8223d660b3fbbc66c19ed66a6c196bcb4cbcee3f44076791e97beb68e35e4e25f6b1021d0ef5531c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}