{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1288425",
    "entityType": "User",
    "nonce": "0x0fae3bf2fcb22ec0346337d2f362c1f9c1d0eeae67ed7c5c956797c045da2aad",
    "signature": "0x0a387e1056655c77a6ade9fb246f708b4f03b9930f12ef2914b2f352f03be3684cad6c6c04a77027a68865b600d37c9880de030d7d3e660439a7e1d091e8f1751b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}