{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd142d522a51b32737b435858697f49310540855d35e5db3e1390d32c54919b86",
    "signature": "0x810711bbf4f410fc17609ca9fbc4a6b49be586034ee22e176e68681049ff86f9294ae6d39a13437207ced8f2d85673250df21b441272b244f332a1efe9f127e91c",
    "signer": "0xc1c674858dc4a7b2A2D35Ee465CEf43c579a03AE",
    "userId": "309444723"
  }
}