{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f15080a716acd2564f0167cbc912f66280018bb58c35b33c4b84ad9caadee8f",
    "signature": "0xa8107f9ecf465a4c8b4bbacd2420a0ef24e3078f58da69928c5da8838f0c26105b90125e1ba3db48c69ed682808e319415e6c72a7df7b1324d1d8de4507a82741b",
    "signer": "0x76A2c17BA5aadf75D7681DA26dC386569441b2a6",
    "userId": "893433613"
  }
}