{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xdb8417b127d7c4af6f8264913eca56634759ad207828e59536044fa7d40fbd14",
    "signature": "0xd452706ffe9b0b128f883156c5d20bfae62f88999d6f512c8989f462066443df74f2bae77ae06fc0231988b80a22efe0bb9d6369358d2acbe76ec6b578ca4d871b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}