{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x61f24fe0855d05fa8bd216c7e978fb634313c47d6f9a731cc11ce767857862d8",
    "signature": "0x7de5c5ce2b10f464377e5fba22814328ca40b60b21f5b83e3a84f732aee90ae6730e0a408a230a18ef6ac0c71839829aa17036aed824190c137429188f3b988b1b",
    "signer": "0x40F423EA7A296D8496CCB40BB242bed5fe91AdAe",
    "userId": "981893037"
  }
}