{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7531",
    "entityType": "User",
    "nonce": "0x257f110e784eec663b812f7723f4e9578f8472b41a9cec27620b820b59584ff5",
    "signature": "0x96b35e6431a2b31bcf1741ad7170e6376f3db72926ebd925f10e14c9601d188a2d9053bf764f7e24224abbff5dc5422a260aa649decb0f8c96baefd6a6f6ef5f1b",
    "signer": "0xEC8b66252F8C4387beB60Bf8700DfFB53f28d877",
    "userId": "391278306"
  }
}