{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0xd8508a413a3c52c2bb6f3123730f67fce514631cfa15b3bf680a730d72588e7c",
    "signature": "0x314be7ed22504df3df6b7009fa66bc84c2482ba082442f81c61d9ccba9068fa36de2a3f81a660b14a3614ad9a0709301e163f916d4d160e2fef52b1a9aabb1d71b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}