{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x399b558de059341855e8fe0e3d7dee8ab552573dcce12934cbc50a6284828d87",
    "signature": "0xd5239f2cc8b8f21964da3c1984bcb6175ec3e8341c656e661165788f08883e262c269db053c23f9f2844e02fab15693ace685c5fe017c7a749af8baa888b9d541b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}