{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881145",
    "entityType": "User",
    "nonce": "0xb8585bbdde8ee814bb7994f8fb51d9e817d33eb8513e26a2fdbf9eefc65f73cd",
    "signature": "0x7369759ed3084fc19cd5285d6649de2979b3f507fba9eface64e652af3f2549951d0eb62155421593984b5f5af158775b5bf357d87dff6c09e0e111f9af94bb31b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}