{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222766",
    "entityType": "User",
    "nonce": "0x391579dad974ae1cd1fb93c3c3fd7384356100b03aeb2495cdd17c67fd5073ff",
    "signature": "0x7dba51b6bc3719463bdb9a3a6b68ad7d7134d4ded3d13f0fcd7083f1616338947cd085a989bb9839639b6ee2eb97b34503fcfa9740bebcfdfba01a416e99eba41b",
    "signer": "0xA7cf2eEF6B0136912cE266B0191FDD060fcf44e8",
    "userId": "375053134"
  }
}