{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010276",
    "entityType": "User",
    "nonce": "0x0cf6a34a6b13c5db32cff27751f81384a82a8cb830cb3608e88e95341adf50fd",
    "signature": "0xf0c4a027d9ae336e6ffd0acac893b57529c7d1c3bb6b1401a69a51d30db211287207427628e1408239ec57ca4ce0a3894d7cb2d853c7bbbff93e80c63ef42ccb1b",
    "signer": "0x19f45BcD7C0300306b47969a99Dc4bc70Fa19fa9",
    "userId": "20289770"
  }
}