{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33896318",
    "entityType": "User",
    "nonce": "0x1feccfb662088f34975ee995274745e8868e9628a87fb6936bdb95aae15da250",
    "signature": "0xf59b136bbce1f85fd6be10a65f557eab84e3f4642973699c4e4fdbc6d7b18e3759d1fc7dccb25f83cbe0cf35e6206c001ac36ab638b673dc845c5dbb29cea1ce1c",
    "signer": "0x99b5F46ae3978FB02A645f824e51700B327f1d6e",
    "userId": "97654"
  }
}