{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5326",
    "entityType": "User",
    "nonce": "0xa8f416d22bc73eff4496107c2e1ff6678d074e1beddd5ff43438782611757f67",
    "signature": "0xf666cda427425d51073faa3eeb2d53d3ecfc43053bd0b4608826b5719a9ceaec3742856fe93aba2e42ba2610609707a9920ab38ca435d5d4148e7cb130c808021b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}