{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80151",
    "entityType": "User",
    "nonce": "0x8bd1483af74f140856e6f15089bf8cbb6942b33838251f2c66fe23bcd8349c31",
    "signature": "0x4e09595dc49bcbb8d8f6b540d74632ea947c30c4d9e4e390aa62db18bb187e273e63f76a8aa2ccb05207dcb2014f3e13959d20a6fc1e323ade58c4eeb9eac14a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}