{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1715129",
    "entityType": "User",
    "nonce": "0xd2dd848c788fec41e23903212d0f635b3c561794048e85bbebaf662c99e79ce1",
    "signature": "0x436d5dddd4c7ac1fb4333b7e750d6bce6e05327b5c0f47edfdd0660ec32feed50c8c219963dfcd755a1b7a5bfddd65aff2b4d95902445c2e738992212342a8fd1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}