{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261090887",
    "entityType": "User",
    "nonce": "0x59e9edc2d7770444351062bde14b22d46bd511e9facb8844407400f55491ccd3",
    "signature": "0x1cbf90973fa3abce5de9fe97c3490a0b4db3e16cd6c7a30fdbd0735918ba7ebf727902137bcee20fb76256637578cb69a92dd26ae5f96bfc9bfc7cb0af8767981b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}