{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x2d8380688c4d41b56bc2d32d4242b8f13384dc71c0b9c0f53a09455526aec036",
    "signature": "0xad1ae75cf0aa4fc57fbad86b9f925f0f2e6e58b9247aee3ed82e6be78de4f5f0171677852b46a0370f7aa06e7ad2b940cc82d02c651f7bffb954a1bf940b85921b",
    "signer": "0x59703Be510759288E02691dA4939360e8FcCd725",
    "userId": "38568"
  }
}