{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139859",
    "entityType": "User",
    "nonce": "0xab5f2f5decba94d1e0cc2d9fa40828fa20894e750a14b15df3687890d8a595d9",
    "signature": "0x76bd4b60ebac898a1986175df917007ab7b4f22beb6c5c672f198761d327119a017a44c10eef84e4270c8a4d9cb58684ccd4344eee83c41af9ea93651edc939f1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}