{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "950478625",
    "entityType": "User",
    "nonce": "0x13d4f0fb84aa186679c1b9994cc7eb9c06b6ecb7c4a23e9fca8a8668950cdb65",
    "signature": "0x4e8155423c9eff24226559b785acc2b7cdd231386694e79f6e8e54f20e63d0ca552c6b66a902e92dc952ac0ef779f14ca2849e299ad38976737e2549028ba2741c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}