{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74152",
    "entityType": "User",
    "nonce": "0x1485b1a0e2822f92f2fedcc3844b585f0c0910f6ceb8601984871025e58e54f9",
    "signature": "0x3b3d89db4d61862e6d485f8c48d84610df68a069907ed64a00c9d3d3f80a27a60274324977621605fd7fd18b5e3095f704798a720ec9561d81e571481efbb1061b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}