{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7996a0a3934ed398d05d2debe536b80df8d641c5e916aa7a5bb515464755db0c",
    "signature": "0xd9356d5fb0fb7674daae9fa7d53b4563858dfb69ce1554e7e3ea59d82b2c257568671df6b514cb8e3760874993e7a0b3f3255d0e729fd1554cb5669d2e0b36661c",
    "signer": "0x69A2765596Cd514f6fFC6aD1D91cf7dbFCcA61Af",
    "userId": "15311889"
  }
}