{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231089",
    "entityType": "User",
    "nonce": "0x0dc74aea27f371642eb3814cc9d1aa22c42a93368c11e4d618f414b836ee951f",
    "signature": "0x7386112186631c4d2417990b3343ba6f743949b3727e3bac46faa4c2d0186e54777b1a29e908703f15d404c4ec6e90864ea00ea44a6c3bf227b85edb43e5b7021b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}