{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf9ad9f074363d9e716e5f254e458a11898fe850d34286d78ff77b4318ab1f2a",
    "signature": "0xae821c867067d9b615c17b9d50a4a2a735d9063c18057a199adfa5ae4494e2400a115c8ee70ddc9aa3ed18f2a8b5b65883acb19922485464ec05974e4f5e4e471b",
    "signer": "0x47D404E086ca1d1E8Ec7a563A4fF6c7115e69100",
    "userId": "880533237"
  }
}