{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x75e18b9a434245ee975d504362e06a67286f719be1259ee4753bbb76644bb47e",
    "signature": "0x9687c09cfeaf2476cb2f6044bd9e597ca1a39c6f646e80d958d72b800523038c51b9e702e8405de88073ec4407c4f447d773e1795c1f301ffd73ec2da26cd2a31c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}