{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe6faf54427dd5d2a8c777fcfe0576c1b7a1b01f0e9927d03cd13de862e574ea6",
    "signature": "0xe52e4d9b891041455110a7150f75ef1a5991a54db1c6cb520fd5cf3105aa4f407de7811e2b673f7691a85d3eed340ff5c89941a9bb5f2bef5f7695ecd52a87201b",
    "signer": "0x2e02BdfcaA7524083aa8E8E4fCEA7a41BE6B3e90",
    "userId": "968818821"
  }
}