{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1512764",
    "entityType": "User",
    "nonce": "0xbc942876ef014b34bd7eec8920dc5e2c4e8f9e0d898ea1bcc2a0b7131c75f633",
    "signature": "0xf3a8bc27d5d56b3cc5778d18c575277c5cc48fb2904810b3d4cffd06600cd3167dbe4a89c8a78e0266ca158e7a7017161dcdc78eadb87eee7cbdb409157451c91b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}