{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319150",
    "entityType": "User",
    "nonce": "0xadcf2226fd0596976401098ba29119e65ae7d3565e0f0741ae4536840a5d7416",
    "signature": "0x64baf229821b9c9dfba0253aa8f31f1e8cb8a946387719cce65b8030115741274b19d5e9d4f5b48975f8c8d6ecebe599e12e4e190eb3d371b38e7f075263b16b1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}