{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "432118704",
    "entityType": "User",
    "nonce": "0x57cde90745ae42199f5959ba8ea22f7c45584fb741186c99192ab7d95158bf1b",
    "signature": "0xc617f1afd9fc1235849542a6b0a918a0e99e124bc266149c86b1cce4dcd404501ca1c129400ffd066b322569d833ac0682ee133728ba783ed4e8d2e7da26c8e81c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}