{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe236361fb05d3f89b6b8434fa61b27677ed6fa8c8143acaebc224e45cf7d8303",
    "signature": "0xfaf52ac8f056f9e28cb1e2053fb56b4a0670ea122162831f57a4d5170e7ec8ae1334e1393dafcf2e808328f3360e24ea437e03b45cc48ccb7fb1f0b755e3af081c",
    "signer": "0x491B54C53C6cD2140A4Fc8C48EB78E19daA57eeB",
    "userId": "659417475"
  }
}