{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xe3ff86a68eda7adff0ea3314c32b2d72ea50baaa60883e1805368f9f3e87225c",
    "signature": "0x6ca68cbf90733de0e776d52a29e56fb0ecec3ea0c2a1fb02a3e10755f50aeb2940082ede75c1a0860c8ace2b5a6982da49818d04658df41a2aae06adc9d1403c1c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}