{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3dab4b0f3b3c15fd3fa8c645b77a1bc8ec7339aa2c4fc83cd7c3d1d2a48d0e54",
    "signature": "0x3e23043f622a3c75b464500ba5e4c9eb342261572ec779b8fbfdebe47099b7f579b4158d3942c1e354c7ebf6ad1049b49be9c5bca134c9c48ab8d1497001e05b1c",
    "signer": "0x84fD376807Fbf95Ef5d51b25E0E7509C6E4eF266",
    "userId": "194950655"
  }
}