{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8263f57a94efb4df6a8c48cc4caac833361ab05526ce3761ad796900044bab7e",
    "signature": "0x2869c3ea1624d5d856cd3057a32f90add17e30fa6610c409012d89b1cc01d915769cf9fe14b21232a1089b13ec59ddfc515539a4fa8d38830a70fbc0ce0b4a8e1c",
    "signer": "0x6CB0a0F30c69F8b34eC94f22eaf19AB7d4f153Bc",
    "userId": "367904250"
  }
}