{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40651",
    "entityType": "User",
    "nonce": "0x61e9a50c4a9974a5ecf8eefa2d68a2f89c33dc5ee48f00c185f58fa15c8edb96",
    "signature": "0x48c3dd8ed1de2cfa72d32899095e75819725e9432186676dec727bead21e55e428718774f2644ab3962fe2752f49c63045780f4e86ae735d34c17522b62dc0ef1b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}