{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43f9aa12b5b3a6069fc6e5bd8c8e7cd0fee5e71234a3f7456fdd865d191ad4ee",
    "signature": "0x38d5b6e93bd150fcb26dfcdfa086bfd5d56e7cd2e2610e052937885d45bc002a7d53fa51d2d286875241264570a8ef49f6b1cdd4b300f05ac763897c8a5f22511c",
    "signer": "0x326c85c40cfA55C3758A7fda184E291A9D582A32",
    "userId": "499786884"
  }
}