{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1a0a7cf0f638a4636979a89c47e64292aef11054c69fab3cb7d73d06e52c8ee8",
    "signature": "0x8cb3c244675154885ea449e2db37e8c883598dccba2f1e9200fb6bddad88fd6223a312e6e955bcbdc85f31a795b9c4a7230c361a7c0c8e4fc833cb5e6db0bd671c",
    "signer": "0x37078959e8708e75303c5386562E052FCE3c1B1C",
    "userId": "446684277"
  }
}