{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8151",
    "entityType": "User",
    "nonce": "0xe40d7a047ab4c99974fe5ececfb93f1839ec8ebe7e0ea4df8b07a5ded1b1dece",
    "signature": "0xf3e3e550ee291e7356218f5d478799095710ea5799e6afa44f4e12afceba961b7a830e490eddbd7baff7afc59de667bf085213cad70b9d9cfac44d486099c1041c",
    "signer": "0x3650a89287dc01b8b035442A3E9e1fdCC1CC2324",
    "userId": "572305760"
  }
}