{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75700",
    "entityType": "User",
    "nonce": "0x4faf3afb2826b3bd492ec7882052eec65c3fe77659c96a712f88531f644937cb",
    "signature": "0x892a32245816af12a01cfd3c32d69ae970f7c07c1529a36edfad791705eabfab140b0d111684a8c02310d3898cb9e0a3972274271a36bfc39b9ad82bd7c04ca71c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}