{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60903",
    "entityType": "User",
    "nonce": "0x6d6fd8a74c6c1435fc2d64ccef16d30dd83da171c6c4c70df6ce271cfa4f2268",
    "signature": "0xa5d338e8394100edeaf1ce9be9cad59d58bbf2d793aade1ef15de2b021260054591443e46b559190f5cddfa52066e2732d8df8e2c181c4a42b650e187c6a9cc91c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}