{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xed66d3abbf59df9bd20cd3bc51fa3d6008558f3a0f44a1078a221d46db7a8de6",
    "signature": "0xbc91015336dc3bf0323e0c1bf6be8c31c284f20a45eb2d1ebaf2edbffd82c6793195082bc670d7acb45ff40dcdd381c5b3b94b11c794d4ab046bdd20b0372e0b1b",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}