{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x77aaa4de6872b3a8009c6c416a6c2c8c79d805acb9a5d2b707a025584e2c69b0",
    "signature": "0x2f5d62d18311b13b6fce5ee665b77238596e25ae161b16c385012874ec9e256f74fd8ca9d4492e329329d8303b424b6cb00815a82e6fbf74e61f3f01487a6adf1b",
    "signer": "0x07cB076DaACCA202F3ffB2dF4A778b16AcEf28Ee",
    "userId": "998685050"
  }
}