{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "915518",
    "entityType": "User",
    "nonce": "0xb9c94fa4d185967b2f680fae917987e21a91c3e4272281f2f64cd0ac0fdfce51",
    "signature": "0xbd53a6de06fe05d0c919e95352ba3a0d079b53350c85bb5f7835f9e5994e93b07fcc951e1eb2d63f96e71b92e67c71e2943c7ae17928c3174bb408b3675bb12e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}