{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57696",
    "entityType": "User",
    "nonce": "0xbb66da510dfd1ca37b36bd900119a5a5f9ab692a9453c3d45d60f5650d89f418",
    "signature": "0xc3f8f7065a3e5a9f67d3ac11f3eab10c66df4016d7c5cf130b77e7d8c281c3077afe7e18ac04c26906c7da5d067cbe879644fbd0f03bc8876190327cc5a90f6b1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}