{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894327847",
    "entityType": "User",
    "nonce": "0xa2bd14e52440b9fc1aeee5423442d0cd38930a338fde7284720d47a152010125",
    "signature": "0xaad5045e30af603eceeda802ca647d083fed89169885cfe0ecc5b6350ab2b45b2558234173ad4ab86c88761768c7efba1d92c1c132833132bd90e48ef1de7a831c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}