{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "262195",
    "entityType": "User",
    "nonce": "0x77c6d0d3121d73c207947122963782c0f1cbbc3698a14d07d50d25222e48e699",
    "signature": "0x635480aaeb7a53feff5b54d66a769327bf804f80fab3bada03b9a768a45e34894b14536d1544f28a8a76d34cb79dee01d899f4850e0fed97277b8e7c91eff14c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}