{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "928381185",
    "entityType": "User",
    "nonce": "0xa6f447bd0bab6adf7b02bb9d39bef3764a50ac33d970995ed93714977db285ec",
    "signature": "0xe3e31c4f11c47fbaca80a128594503537e0d5fdac3b7f9607dbbe7f2ed7daa6c4c6c10833516a6af822b2d280b4f51a388825bc73d873b0ed59388360c6f03101b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}